Q6 ⇒ If a D.C. motor designed for 40°C ambient
temperature is to be used for 50°C
ambient temperature, then the motoris to be derated by a factor recommended
by manufacturer and select
the next higher H.P. motor[other wrong options][Discuss in forum]5 -2

of lower H.P. should be selected of higher H.P. should be selected can be used for 50°C ambient
temperature also

Q10 ⇒ Which of the following steps is likely to
result in reduction of hysteresis loss in
a D.C. generator ?Using material of low hysteresis coefficient
for armature core material[other wrong options][Discuss in forum]7 -1